247202273 has 2 divisors, whose sum is σ = 247202274. Its totient is φ = 247202272.

The previous prime is 247202261. The next prime is 247202311. The reversal of 247202273 is 372202742.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214563904 + 32638369 = 14648^2 + 5713^2 .

It is a cyclic number.

It is not a de Polignac number, because 247202273 - 2¹² = 247198177 is a prime.

It is a super-2 number, since 2×247202273² = 122217927552733058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247202203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123601136 + 123601137.

It is an arithmetic number, because the mean of its divisors is an integer number (123601137).

Almost surely, 2^247202273 is an apocalyptic number.

It is an amenable number.

247202273 is a deficient number, since it is larger than the sum of its proper divisors (1).

247202273 is an equidigital number, since it uses as much as digits as its factorization.

247202273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 247202273 is about 15722.6674899649. The cubic root of 247202273 is about 627.6017606114.

The spelling of 247202273 in words is "two hundred forty-seven million, two hundred two thousand, two hundred seventy-three".